Q: Lactate Ringer (LR) is an alkalizing solution. Its PH is

A) 7.4

B) 8

C) 7.8

D) 6.5

E) 5

Answer: D

Interestingly, although LR is an alkalizing solution, its an acidic solution with pH of 6.5. The lactate is metabolized into bicarbonate by the liver, which can help correct metabolic acidosis. Though lactate itself contributes a strong anion and generates protons, Ringers Lactate solution alkalinizes via the sodium cations it leaves behind. They increase the strong ion difference in solution, leading to proton consumption and an overall alkalinizing effect.